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15. INVERTER CONNECTION
15.5 FREQROL Series Inverter Side Settings
HINTHINTHINT
(1) Automatic setting with Pr.999
If Pr.999 is set as the following, the communication settings other than [PU communication station number]
and [Communication EEPROM write selection] can be automatically set in a batch to the default
communication settings of the GOT side.
*1 When monitoring the value of Pr.999, 9999 is always monitored.
(2) Inverters available for automatic batch setting
Parameters are not automatically set in a batch depending on the SERIAL (production number) symbol of the
inverter to be used. For details, contact your local distributor.
15.5.11 Connecting MD-CX522- K(-A0)
Communication settings
Make the communication settings of the inverter.
Be sure to perform the inverter reset after updating each parameter.
(1) Communication port and corresponding parameters
(2) Communication settings of inverter
• Set the following parameters using the PU (parameter unit).
• After setting the parameters for the communication settings, reset the inverter.
• Do not change these parameters, even though they can be monitored from the GOT. If they are changed,
communication with the GOT is disabled.
*1 Setting items are parameter names described in the manual of MELIPM series.
*2 Settings on the GOT can be changed.
When changing the settings on the GOT, be sure to change the parameters on the inverter to correspond with the GOT settings.
*3 Inverter default values (No need to change)
Parameter No. Set value Description
Operation in parameter setting mode
Pr.999
*1
10 GOT Initial settings (PU connector)
[AUTO] [GOT] [1]Write
11 GOT Initial settings (RS-485) ―
GOT connection
destination
Parameters corresponding to inverter
PU connector Pr.79, Pr.117 to Pr.124
Setting item
*1
Parameter No. Set value Contents of setting
Communication station number Pr.117 0 to 31
15.5.12 Station number setting
Communication speed
*2
Pr.118
192
*3
19200bps
Stop bit length/data length
*2
Pr.119 10
Data length: 7bit
Stop bit length: 1bit
Parity check presence/absence
*2
Pr.120 1 Odd
Number of communication retries Pr.121 9999 The inverter will not come to an alarm stop.
Communication check time interval Pr.122 9999 Communication check suspension
Wait time setting Pr.123 0 0ms
CRLF presence/absence selection Pr.124
1
*3
With CR, without LF